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authorRaghavendra Rao Ananta <rananta@google.com>2023-08-11 07:51:17 +0300
committerMarc Zyngier <maz@kernel.org>2023-08-17 11:35:14 +0300
commiteddd21481011008792f4e647a5244f6e15970abc (patch)
treebf8760d53ebcc0ee75628017c5f763073e0da14f /virt
parent32121c813818a87ba7565b3afce93a9cc3610a22 (diff)
downloadlinux-eddd21481011008792f4e647a5244f6e15970abc.tar.xz
KVM: Remove CONFIG_HAVE_KVM_ARCH_TLB_FLUSH_ALL
kvm_arch_flush_remote_tlbs() or CONFIG_HAVE_KVM_ARCH_TLB_FLUSH_ALL are two mechanisms to solve the same problem, allowing architecture-specific code to provide a non-IPI implementation of remote TLB flushing. Dropping CONFIG_HAVE_KVM_ARCH_TLB_FLUSH_ALL allows KVM to standardize all architectures on kvm_arch_flush_remote_tlbs() instead of maintaining two mechanisms. Signed-off-by: Raghavendra Rao Ananta <rananta@google.com> Reviewed-by: Shaoqin Huang <shahuang@redhat.com> Reviewed-by: Gavin Shan <gshan@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/20230811045127.3308641-5-rananta@google.com
Diffstat (limited to 'virt')
-rw-r--r--virt/kvm/Kconfig3
-rw-r--r--virt/kvm/kvm_main.c2
2 files changed, 0 insertions, 5 deletions
diff --git a/virt/kvm/Kconfig b/virt/kvm/Kconfig
index b74916de5183..484d0873061c 100644
--- a/virt/kvm/Kconfig
+++ b/virt/kvm/Kconfig
@@ -62,9 +62,6 @@ config HAVE_KVM_CPU_RELAX_INTERCEPT
config KVM_VFIO
bool
-config HAVE_KVM_ARCH_TLB_FLUSH_ALL
- bool
-
config HAVE_KVM_INVALID_WAKEUPS
bool
diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index 70e5479797ac..d6b050786155 100644
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -345,7 +345,6 @@ bool kvm_make_all_cpus_request(struct kvm *kvm, unsigned int req)
}
EXPORT_SYMBOL_GPL(kvm_make_all_cpus_request);
-#ifndef CONFIG_HAVE_KVM_ARCH_TLB_FLUSH_ALL
void kvm_flush_remote_tlbs(struct kvm *kvm)
{
++kvm->stat.generic.remote_tlb_flush_requests;
@@ -366,7 +365,6 @@ void kvm_flush_remote_tlbs(struct kvm *kvm)
++kvm->stat.generic.remote_tlb_flush;
}
EXPORT_SYMBOL_GPL(kvm_flush_remote_tlbs);
-#endif
static void kvm_flush_shadow_all(struct kvm *kvm)
{